Pointools V8i clash detection query

Hi I wonder if anyone can shed any light on this for me. I have Bentley Pointools V8i and I'm running a dynamic clash detection between a pointcloud and a model(obj) .

Pointools seems to be detecting and tagging the clashes correctly however does not highlight the points on the cloud adjacent to the clash as shown in some of the tutorial videos. The green boxes are there but no actual points highlighted. Anybody have any idea why this is.

I'm using a coloured pointcloud, could the rgb values of the points be stopping them from being displayed properly? 

any help would be much appreciated, cheers